955
FNCA52 TJSJ 300724
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
324 AM AST FRI JAN 30 2026
DISCUSSION
A LOW-LEVEL MOISTURE ATMOSPHERIC DISTURBANCE WILL PROMOTE
VARIABLE WEATHER CONDITIONS ACROSS THE AREA TODAY. BRIEF PERIODS
OF LOWER RELATIVE HUMIDITY ARE EXPECTED OVER USUAL AREAS OF
SOUTHERN PUERTO RICO, WITH VALUES DROPPING INTO THE MID-50S.
SURFACE WINDS ARE LOWER, BUT STILL SUSTAINED WINDS UP TO 15 MPH
WITH HIGHER GUSTS ARE POSSIBLE ACROSS THE MENTIONED AREAS. DESPITE
THE INCREASES IN MOISTURE, FUELS REMAIN ON THE DRIER SIDE,
SUPPORTING FAVORABLE FIRE-WEATHER DISPERSION. HOWEVER, FIRE-
WEATHER CONDITIONS WILL REMAIN LOW TO MODERATE TODAY.
PRZ014-310730-
SOUTHEAST COASTAL PLAINS-
324 AM AST FRI JAN 30 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 30 10 80
TEMP (24H TREND) 87 (+3) 70 (+1) 85
RH % (24H TREND) 60 (0) 97 (+5) 70
WIND 20FT/EARLY(MPH) SE 14 G20 E 12 SE 16 G21
WIND 20FT/LATE(MPH) SE 14 G20 E 12 SE 16 G21
MIXING HGT(FT-AGL/MSL)4690 2390
TRANSPORT WND (MPH) E 14 SE 16
VENT RATE (KT-FT) 56280 33460
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-310730-
SOUTHERN HILLS-
324 AM AST FRI JAN 30 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 40 10 80
TEMP (24H TREND) 83 (+4) 67 (+1) 80
RH % (24H TREND) 65 (-1) 99 (+4) 76
WIND 20FT/EARLY(MPH) SE 11 E 10 SE 12
WIND 20FT/LATE(MPH) SE 11 E 10 SE 12
MIXING HGT(FT-AGL/MSL)4800 2870
TRANSPORT WND (MPH) E 13 SE 15
VENT RATE (KT-FT) 52800 37310
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-310730-
NORTH COASTAL PLAINS-
324 AM AST FRI JAN 30 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 50 30 60
TEMP (24H TREND) 85 (+1) 68 (0) 86
RH % (24H TREND) 64 (+1) 100 (+2) 67
WIND 20FT/EARLY(MPH) E 14 G17 SE 12 SE 13
WIND 20FT/LATE(MPH) E 14 G17 SE 12 SE 13
MIXING HGT(FT-AGL/MSL)4020 2180
TRANSPORT WND (MPH) E 13 SE 13
VENT RATE (KT-FT) 44220 23980
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-310730-
NORTHERN HILLS-
324 AM AST FRI JAN 30 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 70 20 60
TEMP (24H TREND) 85 (+2) 66 (+1) 85
RH % (24H TREND) 62 (-1) 100 (+1) 67
WIND 20FT/EARLY(MPH) E 12 SE 10 SE 10
WIND 20FT/LATE(MPH) E 12 SE 10 SE 10
MIXING HGT(FT-AGL/MSL)4640 2710
TRANSPORT WND (MPH) E 9 SE 13
VENT RATE (KT-FT) 37120 29810
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-310730-
WEST COAST-
324 AM AST FRI JAN 30 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 20 20 60
TEMP (24H TREND) 87 (+3) 68 (+1) 87
RH % (24H TREND) 61 (-5) 98 (0) 69
WIND 20FT/EARLY(MPH) SE 11 E 11 SE 16
WIND 20FT/LATE(MPH) SE 11 E 11 SE 16
MIXING HGT(FT-AGL/MSL)4130 3690
TRANSPORT WND (MPH) SE 7 SE 20
VENT RATE (KT-FT) 24780 62730
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-310730-
EASTERN INTERIOR-
324 AM AST FRI JAN 30 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 50 20 80
TEMP (24H TREND) 83 (+1) 68 (+1) 83
RH % (24H TREND) 68 (+5) 100 (+3) 73
WIND 20FT/EARLY(MPH) SE 11 SE 12 SE 14
WIND 20FT/LATE(MPH) SE 11 SE 12 SE 14
MIXING HGT(FT-AGL/MSL)4930 3330
TRANSPORT WND (MPH) E 13 SE 17
VENT RATE (KT-FT) 54230 49950
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-310730-
LUQUILLO MOUNTAIN RANGE-
324 AM AST FRI JAN 30 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 60 40 70
TEMP (24H TREND) 79 (+2) 66 (-1) 79
RH % (24H TREND) 73 (+6) 100 (+1) 77
WIND 20FT/EARLY(MPH) SE 10 SE 10 SE 11
WIND 20FT/LATE(MPH) SE 10 SE 10 SE 11
MIXING HGT(FT-AGL/MSL)4170 2070
TRANSPORT WND (MPH) E 14 SE 17
VENT RATE (KT-FT) 50040 31050
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-310730-
CENTRAL MOUNTAIN RANGE-
324 AM AST FRI JAN 30 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 50 10 70
TEMP (24H TREND) 82 (+4) 65 (+1) 81
RH % (24H TREND) 63 (-4) 99 (0) 71
WIND 20FT/EARLY(MPH) SE 8 SE 6 SE 12
WIND 20FT/LATE(MPH) SE 8 SE 6 SE 12
MIXING HGT(FT-AGL/MSL)5110 3380
TRANSPORT WND (MPH) SE 8 SE 16
VENT RATE (KT-FT) 35770 47320
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-310730-
CAYEY MOUNTAIN RANGE-
324 AM AST FRI JAN 30 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 50 20 80
TEMP (24H TREND) 78 (+1) 67 (+1) 77
RH % (24H TREND) 75 (+7) 100 (+2) 82
WIND 20FT/EARLY(MPH) SE 10 SE 9 SE 10
WIND 20FT/LATE(MPH) SE 10 SE 9 SE 10
MIXING HGT(FT-AGL/MSL)4840 2810
TRANSPORT WND (MPH) E 14 SE 18
VENT RATE (KT-FT) 58080 44960
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-310730-
VIEQUES-
324 AM AST FRI JAN 30 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 60 40 70
TEMP (24H TREND) 85 (0) 71 (-1) 85
RH % (24H TREND) 61 (+7) 98 (+4) 62
WIND 20FT/EARLY(MPH) E 12 E 16 G19 SE 19 G23
WIND 20FT/LATE(MPH) E 12 E 16 G19 SE 19 G23
MIXING HGT(FT-AGL/MSL)3280 2440
TRANSPORT WND (MPH) E 16 E 20
VENT RATE (KT-FT) 45920 41480
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-310730-
CULEBRA-
324 AM AST FRI JAN 30 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 50 50 60
TEMP (24H TREND) 85 (0) 73 (-1) 85
RH % (24H TREND) 62 (+5) 93 (+3) 63
WIND 20FT/EARLY(MPH) E 12 E 16 G20 SE 19 G24
WIND 20FT/LATE(MPH) E 12 E 16 G20 SE 19 G24
MIXING HGT(FT-AGL/MSL)3310 2560
TRANSPORT WND (MPH) E 16 E 22
VENT RATE (KT-FT) 46340 48640
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-310730-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
324 AM AST FRI JAN 30 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 10 10 80
TEMP (24H TREND) 88 (+3) 69 (0) 86
RH % (24H TREND) 58 (-2) 95 (+4) 67
WIND 20FT/EARLY(MPH) SE 16 G22 E 16 G20 SE 18 G23
WIND 20FT/LATE(MPH) SE 16 G22 E 16 G20 SE 18 G23
MIXING HGT(FT-AGL/MSL)4490 3020
TRANSPORT WND (MPH) E 14 SE 18
VENT RATE (KT-FT) 53880 48320
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-310730-
SAINT THOMAS AND SAINT JOHN-
324 AM AST FRI JAN 30 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 50
TEMP (24H TREND) 85 (+1) 72 (-3) 85
RH % (24H TREND) 60 (+3) 96 (+6) 62
WIND 20FT/EARLY(MPH) E 14 G18 E 17 G21 SE 20 G25
WIND 20FT/LATE(MPH) E 14 G18 E 17 G21 SE 20 G25
MIXING HGT(FT-AGL/MSL)3290 2700
TRANSPORT WND (MPH) E 17 SE 28
VENT RATE (KT-FT) 49350 64800
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-310730-
ST CROIX-
324 AM AST FRI JAN 30 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 30 30 70
TEMP (24H TREND) 86 (+1) 72 (-2) 86
RH % (24H TREND) 63 (+3) 96 (+3) 64
WIND 20FT/EARLY(MPH) E 14 G17 E 16 G19 SE 19 G23
WIND 20FT/LATE(MPH) E 14 G17 E 16 G19 SE 19 G23
MIXING HGT(FT-AGL/MSL)4260 3310
TRANSPORT WND (MPH) E 18 E 26
VENT RATE (KT-FT) 68160 76130
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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